如何在json中转储压缩字符串？

Question

我正在使用一个字符串zlib,将其存储在字典中并创建字典的md5哈希值.但是我收到了错误:

UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c in position 1: invalid start byte

代码是:

data['extras'] = zlib.compress("My string".encode("utf-8"))  //The string is very large that\'s why it\'s needed to be compressed to save up memory 
checkup['hash'] = hashlib.md5(json.dumps(dict(data), sort_keys=True)).hexdigest()

字典是这样的:

{'extras':'x\x9cK\x04\x00\x00b\x00b'}

任何人都可以告诉我如何在JSON中转储这个字典/字符串？

这个字符串是一个长json.就像是:

{
    "listing": {
            "policies": null,
            "policy_explanation": "Some Text",
            "policy_name": "Flexi3",
            "updated": "7 weeks ago",
            "city": "Bengaluru",
            "country": "India",
             .
             .
             .   
}

Answer 1

您可以先对其进行base64编码,以使其正常工作.它会为字符串添加一些大小,但可能比通过先压缩它保存的小一些:

data['extras'] = base64.b64encode(zlib.compress("My string".encode("utf-8")))